Synthesis of polyvinyl pyridine/C60 conjugates in supercritical carbon dioxide*

Document Type: Research Paper

Authors

1 Department of Chemistry, G.B. Pant University of Agriculture & Technology Pant Nagar Uttaranchal 263145 India ,

2 Department of Chemistry, G.B. Pant University of Agriculture & Technology Pant Nagar Uttaranchal 263145 India

3 Polymer Division Defense Materials Research Development & Establishment DMSRDE Kanpur208 013 UP India.

4 Directorate of Extramural Research and Intellectual Property Rights, D.R.D.O. Bhawan ,New Delhi, 110011. India

Abstract

In the present investigation efforts have been made to synthesis polyvinyl pyridine (PvPy) /C60 conjugates through 2, 2-azobisisobutyronitrile (AIBN) initiated insitu polymerization of PvPy in scCO2.The process of synthesis was monitored under different reaction conditions ranging 1200-1800psi, 60-90 oC over 6 hours. The progress of polymerization was monitored rheoviscometrically. The concentration of PvPy and AIBN ranging 6.95-20.85*10-3 and 304.50-931.50 *10-3 afforded PvPy/C60 conjugates in the yield (%) ranging 10.30-48.8. Selected PvPy/C60 conjugates were characterized through UV-VIS spectra, scanning electron microscopy, gel permeation chromatography and solution rheoviscometery.

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